Curb



April 27 ,1926. u

G. H. swAN-rON ETAL l,582,557

CURB Filed Dec. a 1925 MT?" vHi il' yso Patented Apr. Z7, 1926.

Si HCE.

GDFREY H. SWANTQN, OF MELBOURNE, AND ARTHUR F. ECHBERG, 0F HAWTHORN, MELBGUBNE, AUSTRALA.

CURB.

Application filed December 8, 1923. Serial No. 679,377.

To all whom t may concern:

Be it known that we, Gonrnny lflnnnnn'r SwAN'roN, merchant, a snbjectot the King of Great Britain and ireland, and a rcsidentof the city of Melbournein the county or" Bourke, State'of Victoria, Commonwealth of Australia (Whose postptlice addi-es, 34:6 Flinders Street, in the said city ot Melbourne), and Annina llnnnnnion- Ecrinnno, consulting engineer, a subject ot the King' of Great Britain and lreland, and a resident of the city ot 'Hawthorn a -snlnirhot the city ot li/lelbourne, in the county ot Bourke, State of Victoria, Commonwealth olf Australia (whose post-Ollie@ address is l llosney Street, inthe said city oit Hawthorn), have inventedl certain new `and usetul lniprovements in Curbs, ot which the followingl is specification.

This invention-relates tothe conduits or underground passages in which gas and water mains, electric'conductors and 'the lilie are laid along roadways or like places.

lt is at present the'usual practice to lay such pipes or conductors in a channel which is excavated troni the roadway,V footpath or the like, the channel being` subsequently tilled in with earth `and also soinetiines covered with a'surtacingmaterial such as asphalt. y p' v A seriousdisadvantage with the above practice is the tinie, labor and inconvenience entailed in obtaining access to the interior ot the channel for inspection and repair otl the pipe lines or conduct-ors therein. his

. operation necessitates the digging up ot the earth or coyerino material and thus in man i cases closing,` arportion ot the thoroughfare to traiiic. Y p

The object el the Vpresent invention is to provide an improved construction ot such conduits, which in accordance with the invention are termed ot a series oit special precast concrete or like block units or sections. Y

These units are adapted for laying',` beside the roadway and in addition to torinii'ig a reac ily accessible'conduit are also especially shaped to .torni an adjacent curbing and gutter extending par llel to the conduit.

Referring to the drawingsY which forni a l' part-ot this speciticationtg Figure l is a fragmentary plan View ot the conduit one 'of the covering slabs ot the conduit being removed.

Figure 2 is aV cross'section et the conduit.

Each pre-cast block, unit or section in accordance with the invention may be ot any suitable length, width and height dependingI upon requirements and, to forni the conduit, a eeries ot the units lplaced end to 'endj and preferably cemented together.

Formed in the upper :tace et each unit. and extending troin end to end thcreo'l is an open topped channel 2 ot suitable width and depth to accommodate the retpdisite4 pipe linee. electric conductors and the like indicated at rEhe channel 2 is bounded by an inner upstanding side wall l and an outer sido wall (l said walls extending parallel .to each other Ytroni end to end ot the unit and being connected by an intermediate or bottoni portion. Extending along` the inner edges or corners oli the walls 4C and 6 at the y top et said channel are opposite longitudinal instcps or recesses 7 i'iorniin` oppositely aligned ledgefs or shoulders Sto support a cow-ring,t slab 9. y Y

ll-rseries ot' the covering; slabs 9 which may be et concrete or other suitable niaterial, are placed end to end oVer'the open topped channel to thus torni a closed conduit., the opposite sides et the slabs being accon'nnodated by the recesses 7 so that a substa. tially flush surface is, formed by the top ot the slabs 9 and the upper surfaces ot the walls and 6. The covering` slabs may be cemented or otherwise suitably secure/L in place in such a. manner that they inay be easily removed to thereby permit ot ininiediate access to the interior ofthe conduit tornied by the channell.

The inne" side wall-l is a or abut ag. .st the flags ll or material ot the footpath and inay it desired be provided along its adjacent upper ede'e or corner with a longitudinal recess or instep 13 forming a dapted to adjoin lshoulder ledge letto support the adjoiningvtiags il et the footpath.

T he outer upstandinn wall 6 1s adapted to rorni a curbing nier haring a right Vangled corner 'lil and `vertical tace l? extend- 

